:root {
  --ink: #172522;
  --muted: #66736f;
  --paper: #fbfcf9;
  --surface: #ffffff;
  --surface-2: #f1f5f1;
  --line: #dce4df;
  --brand: #216855;
  --brand-dark: #154a3c;
  --brand-soft: #e5f2ed;
  --accent: #d99b45;
  --danger: #a23b3b;
  --danger-soft: #faeaea;
  --warning: #8b5c1d;
  --warning-soft: #fff5df;
  --success: #26724e;
  --shadow: 0 16px 48px rgba(21, 51, 42, .09);
  --radius: 16px;
  --radius-sm: 9px;
  --focus: 0 0 0 3px rgba(33, 104, 85, .25);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--ink);
  background: var(--paper);
  font-synthesis: none;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; min-height: 100vh; background: var(--paper); color: var(--ink); line-height: 1.58; }
button, input, textarea, select { font: inherit; }
button { cursor: pointer; }
button:disabled, input:disabled, textarea:disabled, select:disabled { cursor: not-allowed; opacity: .6; }
a { color: var(--brand); text-underline-offset: 3px; }
h1, h2, h3 { line-height: 1.16; letter-spacing: -.025em; margin: 0 0 .65rem; }
h1 { font-size: clamp(2rem, 5vw, 3.6rem); font-family: Georgia, 'Times New Roman', serif; font-weight: 500; }
h2 { font-size: clamp(1.55rem, 3vw, 2.2rem); }
h3 { font-size: 1.15rem; }
p { margin: 0 0 1rem; }
[hidden] { display: none !important; }
.skip-link { position: fixed; left: 1rem; top: -10rem; z-index: 100; padding: .7rem 1rem; background: var(--ink); color: white; border-radius: 8px; }
.skip-link:focus { top: 1rem; }
:focus-visible { outline: 0; box-shadow: var(--focus); }
.site-header { height: 72px; padding: 0 clamp(1rem, 4vw, 3rem); border-bottom: 1px solid var(--line); display: flex; align-items: center; justify-content: space-between; background: rgba(251, 252, 249, .94); backdrop-filter: blur(10px); position: sticky; top: 0; z-index: 20; }
.brand { display: inline-flex; align-items: center; gap: .65rem; color: var(--ink); text-decoration: none; font-weight: 750; letter-spacing: -.02em; }
.brand-mark { display: grid; place-items: center; width: 34px; height: 34px; border-radius: 9px; background: var(--brand); color: white; font-family: Georgia, serif; font-size: 1.3rem; }
.save-indicator { font-size: .86rem; color: var(--muted); display: flex; align-items: center; gap: .5rem; }
.save-indicator[data-state="saving"]::before { content: ''; width: 8px; height: 8px; border-radius: 50%; background: var(--accent); animation: pulse 1s infinite; }
.save-indicator[data-state="saved"]::before { content: '✓'; color: var(--success); font-weight: bold; }
.save-indicator[data-state="error"] { color: var(--danger); }
.participant-shell { width: min(1120px, calc(100% - 2rem)); margin: 0 auto; padding: clamp(2rem, 5vw, 5rem) 0 6rem; }
.center-card { width: min(520px, 100%); margin: 8vh auto; padding: clamp(1.5rem, 5vw, 3rem); background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); text-align: center; }
.center-card form { text-align: left; }
.eyebrow { color: var(--brand); font-size: .76rem; font-weight: 800; letter-spacing: .13em; text-transform: uppercase; margin-bottom: .75rem; }
.muted { color: var(--muted); }
.small { font-size: .86rem; }
.questionnaire-hero { display: grid; grid-template-columns: minmax(0, 1fr) minmax(260px, 330px); gap: clamp(2rem, 7vw, 6rem); align-items: end; padding-bottom: clamp(2rem, 5vw, 4rem); }
.questionnaire-hero h1 { max-width: 780px; }
.deadline-card { border-left: 3px solid var(--accent); padding: 1rem 0 0 1.25rem; }
.badge { display: inline-flex; border-radius: 99px; padding: .3rem .65rem; color: var(--brand-dark); background: var(--brand-soft); font-size: .75rem; font-weight: 750; text-transform: uppercase; letter-spacing: .05em; margin-bottom: .8rem; }
.badge.closed { color: #6e4210; background: var(--warning-soft); }
.notice { padding: .9rem 1rem; border: 1px solid var(--line); border-radius: var(--radius-sm); background: var(--surface-2); margin-bottom: 1.25rem; }
.notice.warning { background: var(--warning-soft); border-color: #efd49c; color: #684511; }
.notice.success { background: var(--brand-soft); border-color: #b8d9cd; color: var(--brand-dark); }
.notice.danger { background: var(--danger-soft); border-color: #e9bcbc; color: var(--danger); }
.progress-panel { position: sticky; top: 72px; z-index: 15; padding: 1rem 0 .8rem; background: var(--paper); border-bottom: 1px solid var(--line); margin-bottom: 2rem; }
.progress-label { display: flex; justify-content: space-between; color: var(--muted); font-size: .8rem; font-weight: 700; }
.progress-track { height: 5px; margin: .5rem 0 .8rem; border-radius: 9px; background: var(--line); overflow: hidden; }
.progress-track span { display: block; height: 100%; width: 0; background: var(--brand); transition: width .25s ease; }
.toolbar-row { display: flex; align-items: center; justify-content: space-between; gap: 1rem; }
.question-nav { display: flex; gap: .4rem; flex-wrap: wrap; }
.question-nav a { display: grid; place-items: center; width: 29px; height: 29px; border: 1px solid var(--line); border-radius: 50%; text-decoration: none; font-size: .75rem; color: var(--muted); background: var(--surface); }
.question-nav a.answered { color: white; border-color: var(--brand); background: var(--brand); }
.questions { width: min(840px, 100%); margin: 0 auto; display: grid; gap: 1.5rem; }
.question-card { padding: clamp(1.25rem, 4vw, 2.3rem); background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: 0 8px 30px rgba(21, 51, 42, .045); scroll-margin-top: 180px; }
.question-heading { display: flex; justify-content: space-between; align-items: center; margin-bottom: 1rem; }
.question-number { color: var(--brand); font-size: .77rem; font-weight: 800; letter-spacing: .09em; text-transform: uppercase; }
.required-mark { margin-left: .6rem; color: var(--danger); font-size: .75rem; font-weight: 700; }
.word-count { color: var(--muted); font-size: .75rem; }
.question-body { font-size: 1.13rem; font-weight: 590; }
.question-instructions { font-size: .92rem; margin: .7rem 0 1rem; }
.rich-copy > :first-child { margin-top: 0; }
.rich-copy > :last-child { margin-bottom: 0; }
.rich-copy h2, .rich-copy h3 { font-family: inherit; font-size: 1.1em; }
.answer-label { display: grid; gap: .55rem; font-size: .8rem; font-weight: 750; color: var(--muted); margin-top: 1.2rem; }
textarea, input, select { width: 100%; color: var(--ink); background: var(--surface); border: 1px solid #becbc5; border-radius: var(--radius-sm); padding: .75rem .85rem; }
textarea { resize: none; min-height: 150px; line-height: 1.6; overflow: hidden; }
textarea:focus, input:focus, select:focus { border-color: var(--brand); outline: 0; box-shadow: var(--focus); }
.answer-toolbar { display: flex; justify-content: space-between; align-items: center; gap: .8rem; margin-top: .7rem; min-height: 36px; }
.dictation-controls { display: flex; align-items: center; gap: .4rem; }
.language-select { width: auto; padding: .4rem 1.8rem .4rem .6rem; border: 0; color: var(--muted); font-size: .8rem; background-color: transparent; }
.answer-state { font-size: .78rem; text-align: right; }
.interim-speech { margin-top: .6rem; padding: .7rem; border-left: 2px solid var(--accent); color: var(--muted); font-style: italic; font-size: .9rem; }
.button { border: 1px solid transparent; border-radius: var(--radius-sm); padding: .67rem 1.05rem; font-weight: 750; line-height: 1.2; transition: transform .15s ease, background .15s ease, border-color .15s ease; }
.button:hover:not(:disabled) { transform: translateY(-1px); }
.button.primary { background: var(--brand); color: white; }
.button.primary:hover:not(:disabled) { background: var(--brand-dark); }
.button.secondary { background: var(--surface); color: var(--brand-dark); border-color: #b8c8c2; }
.button.text { background: transparent; color: var(--brand); padding-inline: .4rem; }
.small-button { font-size: .8rem; }
.form-actions { width: min(840px, 100%); margin: 2rem auto; display: flex; justify-content: space-between; align-items: center; gap: 1rem; }
.sticky-actions { padding: 1rem; background: rgba(251, 252, 249, .94); border-top: 1px solid var(--line); position: sticky; bottom: 0; }
.review-list { display: grid; gap: 1rem; width: min(840px, 100%); margin: 1.5rem auto; }
.review-item { padding: 1.3rem; border: 1px solid var(--line); border-radius: var(--radius-sm); background: var(--surface); }
.review-answer { white-space: pre-wrap; overflow-wrap: anywhere; padding-top: .8rem; color: #31403c; }
.review-answer.empty { color: var(--danger); font-style: italic; }
.section-heading { width: min(840px, 100%); margin: 1.5rem auto 2rem; }
.receipt-card { width: min(700px, 100%); margin: 3rem auto; padding: clamp(2rem, 6vw, 4rem); text-align: center; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); }
.state-icon { display: grid; place-items: center; width: 48px; height: 48px; margin: 0 auto 1rem; border-radius: 50%; font-size: 1.4rem; font-weight: 800; }
.state-icon.success { color: var(--success); background: var(--brand-soft); }
.state-icon.danger { color: var(--danger); background: var(--danger-soft); }
.button-row { display: flex; justify-content: center; align-items: center; gap: .8rem; flex-wrap: wrap; }
.button-row.end { justify-content: flex-end; }
.stack { display: grid; gap: 1rem; }
.stack label { display: grid; gap: .4rem; font-size: .86rem; font-weight: 700; }
.field-error { color: var(--danger); font-size: .85rem; min-height: 1.4em; }
.modal { width: min(680px, calc(100% - 2rem)); max-height: calc(100dvh - 2rem); overflow: auto; padding: clamp(1.3rem, 4vw, 2.3rem); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); color: var(--ink); }
.modal::backdrop { background: rgba(16, 32, 28, .52); backdrop-filter: blur(3px); }
.dialog-close { position: absolute; top: 1rem; right: 1rem; background: none; border: 0; font-size: 1.7rem; color: var(--muted); }
.choice-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; margin: 1.5rem 0; }
.choice-card { text-align: left; min-height: 150px; padding: 1.2rem; border: 1px solid var(--line); border-radius: var(--radius-sm); background: var(--surface-2); color: var(--ink); }
.choice-card strong, .choice-card span { display: block; }
.choice-card span { margin-top: .5rem; color: var(--muted); font-size: .85rem; }
.choice-card:hover { border-color: var(--brand); }
.conflict-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; margin: 1.5rem 0; }
.conflict-grid label { font-size: .8rem; font-weight: 750; }
.conflict-grid textarea { margin-top: .4rem; min-height: 220px; }
.spinner { width: 34px; height: 34px; margin: 0 auto 1rem; border: 3px solid var(--line); border-top-color: var(--brand); border-radius: 50%; animation: spin .8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
@keyframes pulse { 50% { opacity: .35; } }

/* Administrator shell */
.admin-body { background: #f4f6f3; }
.admin-shell { display: grid; grid-template-columns: 230px minmax(0, 1fr); min-height: calc(100vh - 72px); }
.admin-sidebar { padding: 2rem 1rem; background: var(--ink); color: white; }
.admin-nav { display: grid; gap: .4rem; position: sticky; top: 100px; }
.admin-nav button { text-align: left; color: #dce9e4; border: 0; background: transparent; padding: .7rem .9rem; border-radius: 8px; }
.admin-nav button.active, .admin-nav button:hover { background: rgba(255,255,255,.1); color: white; }
.admin-main { padding: clamp(1.3rem, 4vw, 3.5rem); min-width: 0; }
.admin-header-actions { display: flex; align-items: center; gap: 1rem; }
.admin-page { max-width: 1200px; margin: 0 auto; }
.page-heading { display: flex; align-items: flex-end; justify-content: space-between; gap: 1rem; margin-bottom: 2rem; }
.page-heading h1 { font-family: inherit; font-size: clamp(2rem, 4vw, 3rem); font-weight: 720; }
.panel { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: clamp(1rem, 3vw, 1.7rem); box-shadow: 0 8px 30px rgba(21, 51, 42, .04); }
.filters { display: grid; grid-template-columns: minmax(200px, 1fr) 180px 180px auto; gap: .7rem; margin-bottom: 1rem; }
.data-table { width: 100%; border-collapse: collapse; font-size: .86rem; }
.data-table th { text-align: left; color: var(--muted); font-size: .72rem; text-transform: uppercase; letter-spacing: .06em; }
.data-table th, .data-table td { padding: .85rem .7rem; border-bottom: 1px solid var(--line); vertical-align: top; }
.data-table tbody tr:hover { background: #f8faf8; }
.data-table a { font-weight: 730; text-decoration: none; }
.dashboard-access { display: grid; justify-items: start; gap: .15rem; min-width: 170px; }
.access-url { display: block; max-width: 220px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-weight: 500 !important; }
.access-controls { flex-wrap: nowrap; }
.access-controls input { min-width: 0; }
.empty-state { text-align: center; padding: 4rem 1rem; color: var(--muted); }
.card-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 1rem; }
.template-card { display: grid; gap: .7rem; }
.template-card .button-row { justify-content: flex-start; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.form-grid .full { grid-column: 1 / -1; }
.form-grid label, .field { display: grid; gap: .4rem; font-size: .82rem; font-weight: 730; }
.question-editor { padding: 1rem; border: 1px solid var(--line); border-radius: var(--radius-sm); background: var(--surface-2); margin-bottom: 1rem; }
.editor { background: white; min-height: 100px; }
.ql-toolbar.ql-snow, .ql-container.ql-snow { border-color: #becbc5 !important; }
.details-grid { display: grid; grid-template-columns: minmax(0, 2fr) minmax(260px, 1fr); gap: 1rem; align-items: start; }
.metric-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: .7rem; margin-bottom: 1.5rem; }
.metric { padding: 1rem; border: 1px solid var(--line); border-radius: var(--radius-sm); background: var(--surface); }
.metric strong { display: block; font-size: 1.4rem; }
.tabs { display: flex; gap: .4rem; border-bottom: 1px solid var(--line); margin-bottom: 1rem; }
.tabs button { border: 0; background: transparent; padding: .8rem; color: var(--muted); }
.tabs button.active { color: var(--brand); border-bottom: 2px solid var(--brand); }
.answer-history { white-space: pre-wrap; max-height: 180px; overflow: auto; background: var(--surface-2); padding: .7rem; border-radius: 7px; }
.login-body { display: grid; place-items: center; padding: 1rem; background: linear-gradient(145deg, #edf3ef, #fbfcf9 55%); }
.login-card { width: min(430px, 100%); padding: clamp(1.5rem, 5vw, 2.7rem); border: 1px solid var(--line); background: white; border-radius: var(--radius); box-shadow: var(--shadow); }
.login-card .brand { margin-bottom: 2.5rem; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }

@media (max-width: 800px) {
  .participant-shell { width: min(100% - 1rem, 1120px); padding-top: 2rem; }
  .questionnaire-hero, .details-grid { grid-template-columns: 1fr; }
  .deadline-card { margin-top: 0; }
  .question-card { border-radius: 12px; padding: 1.2rem; }
  .toolbar-row, .answer-toolbar, .form-actions { align-items: flex-start; flex-direction: column; }
  .answer-state { text-align: left; }
  .sticky-actions { align-items: stretch; }
  .choice-grid, .conflict-grid, .form-grid { grid-template-columns: 1fr; }
  .admin-shell { grid-template-columns: 1fr; }
  .admin-sidebar { padding: .5rem; position: sticky; top: 72px; z-index: 10; }
  .admin-nav { display: flex; position: static; overflow-x: auto; }
  .admin-nav button { white-space: nowrap; }
  .filters { grid-template-columns: 1fr 1fr; }
  .data-table { display: block; overflow-x: auto; }
  .metric-grid { grid-template-columns: 1fr; }
}
@media (max-width: 520px) {
  .site-header { height: 62px; }
  .brand span:last-child { display: none; }
  .progress-panel { top: 62px; }
  .question-nav { display: none; }
  .filters { grid-template-columns: 1fr; }
  .admin-header-actions span { display: none; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; transition-duration: .01ms !important; }
}
@media print {
  .site-header, .progress-panel, .button, .sticky-actions, .answer-toolbar { display: none !important; }
  body { background: white; }
  .participant-shell { width: 100%; padding: 0; }
  .question-card, .receipt-card { box-shadow: none; break-inside: avoid; }
}